Impulse-transmitter.



all miao/n may conceive Be it k ii dint L @LOF eiizen ei die United iaies, East; (')i'zmge in the Colmi); e? m Siete ei' ew Jersey, have inveied ee new :md useful improvements in Emi Ti'miemiteis, of which the following is e fidi, eiezii', concise, and eXaet desei'iptieu.

This invention relates te impiiise milemitteis of the type which are used in e011- neetion with telephone vfsystems employing directly eenbieiled auematie switches, whereby a set of impulses comprising ene i' more sei'ies of impulses may be tranen d for e'ieeging ihe operation ef sueh wir izitie swiehes.

Oidiniwiy, impulse transmiters by which. automatic switches ef this eiieifzieer eure con tieUed, be epemted slowly, se that Yen of die impulses xviii properly ie ss'eiies. This menus met the eailiing; opere. on Wii tend i delay' the Week off The 'person making the mdf :me will aise segui@ fee i, of die more ei' less d l". li the immuni me.'

rind highly eeient impl.; se l which 1s sim'pe io operate and w1 'whim my espendmi Miei-n; ne springs i und 'lr6 te sepai'ate TER,

web, M.,

WFG/Ey @erre` nds n the hundreds digit,

ee., im i Ehe v5011i' of impulses correspend :g ie the 'fem- @js depress=^d have ail bee: 1" ei. Te meehamsm of the i'eiismi i also eii'ziiiged se that duringI of 'the number before the imi pu se transen Ying' mechanism is released, any key may be depressed more than once, es vis the 'ease when two or more digits o the exiled number are idle same.

Other objects and features of this inventien wil. appear from 4the following descrip tion :md claims, in die drawing; Figure 1 ie peispeetive View' of the transmitter with para of the ense breken away to show the operating nl'eeimnism; and Fig. 2 is ai seetin iinif: down en the ine i4 of Fig'. 1.

iig die dizxving, l designates :i

en e in which fue tizmsmiting mechv mism of the ciui'xsnutter 1s inclosed. An up- ;,1 t posi' 1s meuued 11i the eeiitei of the buse ei this ease. l A netehe disk 3 of con- \u (ingm;1tei' iis ii: n-2511)* secured te the y lis disk beingaiso iii- Sslnief from i ie i (im ff the ease l. fi dat fireuim iidiieiziug materie suriemms the outer Eike disk 3. This ring is ixisdnied 5min, iedi the disk 3 und the care 7. leexje is ietatsbly and secured to this z5 upon which three brushes meuiiied. The brushes 0") .151: .9) is iu'eimped by ie brush engaging :i neieh of the disk. The erm has mi upward prejeetion 9 te which u ned :i yoke 1G unifying u, i'etzitebie il cam iesened te one end indie uw! relier 13 035 insideing finden ,Y eepeie wiizh the suiieee et snm ie veiiiiie the swings l and 15, which -fl insu'i'ntedly moulded ou "che prejeeiei The sinking 'i5 is connected te brushes 7 :ed v widmete-'a' 9%-, :md spring 1li is een- .iaffed im brush 973 e :L Conducta' 93. The emv is movded i111 eighi; notches Gi vdivii :diminue ws :we ei? sufi'f-zient depth wee-.11 die miie' i3 moves intei'hem. The

iba

Myth

io iba ci.

. Agom i.' and. it meshes mt soeve :'24 which iS r( tooiof to "bho shove 24 molly 012mg, boing; 'ufo mounted to .o amplio? ranged a pie/soos the s f 31 onifl..

EN xiiion (moo: directly up WV G @loom 3@ ia is, paw 35 u hiJ 1 im the @1.15m mi into of 21mm u the en; mg im man .le f'aom of this `on :io sprngrie, auch .Lz/st colnpi'simg fom' spin 1S 4:3. Eo mov/o 3, L o Sprngs, a pum equal to 511 two Springs .is left for u lnu'poso hel'onmftor dosorbod. Af; shown in ihodawugg", tho irst Spring of auch set nl 'TO proyfctng down: ard naar its The second slxyng of auch set L. 2mg 7EV 1@eindig oWmvm-d, but not so the. end #sulla Tl), Tho third und 7") wml T8 rewurd MH mzuel ,n ogs; are so an'- mo pre-Sooo {io-wuf'h ige in tho path of a. pin 17 bj." m lgn ono of 1: piume ono cip; d. of u This ops-,lation wil! be. zol'f-,omffter "vboc.

1 nod to @he ond of the fiat mufimr it., outward .4 "vf od.7 the. and A Vbrnmket mt 1t reaches 1 ft, :1t 'which time up ini-o normal position nfmw tho kofn A fini ',igak 5f) is; oosolv mounted on the y si It is normally hed against a collar "m on the post 2 by a spring 52, one end of which is fastened to the disk 5l) andthe other ond to n oollar' on the post 2, is su'zportod new? its outer odge by rods 60 wllch are commette-d at one. 61x51 to the disk by a ball and sookot joint) 61 a' i to bracket 4M their other and n ball and Socket joint (52. Those mds; :wie arranged so that when. tho disk moved downward, the

The disk 50 f disk 50 relative tothe keys (i3. Each ke 63 carries a roller GS whioh engages the ,upper surface of the. disk 50 and serves to press thc dlsk downward when its corresponding key is depressed.

The disk 50 has a projection 77 which carries a roller This roller engages a guide member 66 vfastened to a sleeve 55 which is loosely mounted on the post 2. The sleeve 55 carries an arm 56 which is arranged to engage the lever 41 and thereby rotate the disk 38. The sleeve 55 is also provided with ratchet teeth which are arranged to engage ratchet teeth on sleeve 30, but these two sleeves are normally heid out of engagement by aspring S1, one end or" which is fastened to the projection 77 of disk 50,*and the other end ot which is fastened to the guide member (36 of sleeve 55. The sleeve 55 is normally held against the collar 76and.. the guide member 66 against roller 54 bythe spring 81.

The operation of the sender is as follows; it being assumed that the sender is normally in the condition shown in the drawing1 and that` the number to be called is 1123. The person operating: the sender will press the ke)7 No. 1 twice: then the 'keys No. Q and ho. 3. respectively. The first depression ot kev o. l moves the spring 'sti-3 cari'yingf lug' 70'. which is directly underneath the key. downward. rThe roller ($5 ot this keyr moves the disk 50 down against the compression ot springr and also rotates the disk This combined downward movement and rotation ot' the disk is transmitted to the sleeve 55 b v theV roller so that the sleeve 55 moves down into engagement with sleeve 30. rhe rotation ot' sleeve 55 produced b r' this depression ot the ke)v is sutticient to bring the arm 56 into engagement with lever 41 to rotate the disk S8 so that Vthe neXt springT ot each set ot' springs is positioned above the. notches in the bracket 44. and also to move the depressed spring 43 underneath the bracket 45t, so that 'it is held in its depressed condition until the sender rcaehes its next normal position. The sleeve 30 is rotated a distance equal to one quarter the distance between arms 33 and 3Q. This rotation ot sleeve E30 is against the tension ot' spring 37 and the sleeve is held in its ope-rated position b v pawl 35 engaging' a tooth Vot wheel Q5 which is at this time prevented from rotating bv holding,r dog- 26.

rihe second depression ot' key No. l operates the meehanism the same as before except vin this case the spring 43 ot the tirst set carrying` the lug' 7l is depressed and moved underneath the bracket H. rlihe dcpression otkevs No. Q and No. 2 also operates the mechanism in the saine Way as above described. except that the spring 43 carrying lug' 72 ot the set corresponding to key No.2 and the spring- 13 carrying lug 73 of the set correspoiuling to kelv No. 3 are depressed respectivehv and moved underneath the bracket 4d.

When the arm reacties the end ot its rotation in response to the depression of the fourth key, the piu on this arm engages the holdingdog 26 and withdraws it from en- `agement with the toothed wheel The sleeve 3() and the toothed wheel are now rotated in a Counter-oiockwise direction by springr The rotation ot' the toothed wheel is transmitted by sleeve Q4, gears 23. 22. 1%.) and 18 to the arni (5. This gear atio iss-uch that the arm (3 makes tour complete revolutions while the sleeve 30 is .returning to its normal position. As soon as the arm leaves its normal position. the. upper pinlQion the 'ain l2 hits the arm 31 and rotates thefspindle one eighth of a turn so that the rig'lrthanld piu"17 extends directly upward. The rollerV 15 is alsomoved into a deep notch ot' cam 12 so that. the normally closed contact springs 111 and 15 therebvv transferring the current that normall)v passes therethrough-to the control ot brushes 7 and 8. this new circuit being traceable from line conductor .90;disk 3. brushes 7 and S. conducting ring 4 to line conductor 91. .its soon as the brush 7 enrages a notch ot the disk`3 the circuit through the line conductors 90 and 91 is opened 'tor a short interval but it is again closed as soon as the brush? again engages the condluftine` portion ot the disk. When the arm (l has rotated tar enough so that one interruption has been produced in the, line circuit .the luf.: 70 of the first set ot springs engages the upright. pin 17 and rotates the spindle rl au eighth oi a turn. The roller 13 is now in a narrow notch so that the oontact springsllt and 15 are closed. thereby closing a shunt around brushes 7 and 8, thereby preventiiur an \v more interruptions in the circuit between conductors 90 and 91 durintr the 'remainder ot' the revolution of arm G. This shunt circuit may be traced from line conductor 9C'. disk B, brushx 92. conductor 93. contact springs 14 and 15. conductor 9%, brush ringr si. to line conductor ill. ond revolution another pin 1G which was positioned by lug 70 engaging the pin 17,

engages the arm 3l to rotate the spindleanother eighth of a turn and position the pin 17 which is second from the right-hand end ot' spindle 11. The shunt circuit ot brushes 7 and tl is also opened at this time by roller 1B engaging' a deep notch in the cam l. so that impulses are again transmitted over the line. conductors 9() and 91 by the rotation ot 'the arm 6. AMiter one'iinpuise .ks soon as the arm G starts on its secle 'the control of lug lf2 of the second. set of springs, end lug 73 oi the third .set olf impulses und three impulses Jectively. 1 s e "U reaches its noi-mul l5 on, the on :um minos the pewl rement with the toothed wheel topping ihr urine in its nei-4 non. 'lflfic .line circuit'. i`A` maintained position tlirou li springs 14; and stopped from rotatle ine pin Il@ engages the. erm 3l. "wlnfn tl. e sleeve renc-Jes its nor- `tior zu' erm 80, which is carried gages the lever 4.1 und ros usi to position the lirsl' of spi directly over f lune, lt will 4be 'n 'i the for "i y Wes de i was rotated in the saune before, but, due to thedoublc en the e i: ings, the ff ,il held underf is now inv coiulition,for trans.-k enotlier set of impulsos. The

which 'were depressed by the second, `thu-d end 'fourth depressed keys respef.; tively, are `l, heid `under bracket 44, but soon es f sender used again and dish 46 SS r tutori @y meh depression of e key, these deprcssei springs Will he released. .in the order nu L YW l., g device, set of keys, an

impulse t ismitting Ineel'ienism, und means automatico y operated. by the depression of any one oil seid keys after n predetermined number of keys here heen depressed for operating seid mechanism.

50 ln u culling device, a set of keys, en

Iinlpulse transmitting n'ieelninisin normally lniwenieifl from ogjlereting, and ineens operated oy the dep-res. on of sind keys to mito-` inuticclly release said mechanism after a predetermined number of keys have been depressed.

3. ln a calling device, an impulse trans mitting mechanism normally prevented from operating, e set of keys for adjusting seid mechanism, und means for automotieully releasing seid mechanism dependent on the actuation of a predetermined number` o keys to allow seid mechanism to transmit eeries of impulses corresponding to the keys previously depressed.

il, ln uy calling device, un impulse trans-- mitting mechnnism, u set of; keys, means adjusted by each depression of u key for predetermining the number of impulses to bc transmitted by seid meehzmisin, means for preventing said mechanism from operating during seid adjusting, and means for euto nmtienlly releasing said mechanism dependent on the actuation oi :1y predetermined number of lgeys to allo sind mechanism to transmit of impul corresponding to the keys previously depressed.

5. In a culling device, on impulse trains mitting mechenism, u source of energy for operating soi?. mechanism, luiilding momie for preventing e1. d mechanism from being operated, u set of keys, lne-nis adjusted by each depression of n key for predctermining the number of impulses to he transmitted by :seid meclmnism, menne operated by euch der pression of :i lier for increasing the energy of said source, ineens for automatically withdrawing seid holding means after a predetermined number of keys have been dein'eesed to allow enfid mechanism to be open ated by seid source of energy to transmit series of impulsos corresponding to the keys preilonsl.' depressed, sind ineens for restoring seid holoing meine',` when ell of seid rumen 

